Finding the Fourth Proportional to 3,720.67, 5,589.71 and 3,510.51

Step by Step Solution

1. Step 1: Write the proportion equation
   3,720.67 : 5,589.71 = 3,510.51 : x
2. Step 2: Convert to fraction form
   3,720.67/5,589.71 = 3,510.51/x
3. Step 3: Cross multiply
   3,720.67x = 5,589.71 × 3,510.51
4. Step 4: Simplify right side
   3,720.67x = 19,622,732.85
5. Step 5: Solve for x
   x = 19,622,732.85/3,720.67
6. Step 6: Final answer
   x = 5,273.98